The particles are highly monodispersed, but the method of synthesis is proprietary to the manufacturer.
797928
Fluorescent silica nanobeads
25 nm, lyophilized
Synonym(s):
Fluorescent beads, Fluorescent nanoparticles, Silica nanoparticles
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5 MG
€543.00
About This Item
Linear Formula:
SiO2
Molecular Weight:
60.08
UNSPSC Code:
12352302
NACRES:
NA.23
Recommended Products
Quality Level
form
powder
particle size
25 nm
fluorescence
λem 590 nm
UV absorption
λ: 570 nm Amax
storage temp.
2-8°C
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Application
The use of labeling or staining agents has greatly assisted the study of complex biological interactions in biology and the fluorescent labeling of biomolecules has been demonstrated as an indispensable tool in many biological studies. By virtue of excellent fluorescence properties the silica nanobeads find application in biological labeling, bioimaging, biosensing etc.[1][2]
Storage Class Code
11 - Combustible Solids
WGK
WGK 3
Flash Point(F)
Not applicable
Flash Point(C)
Not applicable
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what type of amorphous silica is this (i.e. colloidal, fumed, fused, etc..)
1 answer-
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Are they stable in high ionic strength buffers?
1 answer-
These nanobeads are negatively charged in water. Alkaline solutions, such as ammonia, may improve stability. The stability in a high ionic strength buffer would depend on the specific components, but most often would not enhance the stability.
To discuss this further, we kindly ask you to navigate to the link https://www.sigmaaldrich.com/techservice and click on "Product Technical Inquires" under the Products Section with all the required information so that a member of our team can reach out to you to assist further. Thank you.
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